AUBF Flashcards
Asahina, a registered medical technologist, is suspecting presence of oval fat bodies and fat droplets in a urine specimen. What stain must she use to demonstrate presence of
these sediments?
Sudan III stain
Presence of B-hydroxybutyric acid in urine specimen will give you what result on Rothera’s test?
No purple ring formed: it should not contain keto group (according
sa internet
How many hours of sexual abstinence should the patient observe prior to specimen collection?
48 to 120 hours
Which of the following tests for proteins is not based on denaturation and precipitation of proteins in urine?
Reagent strip test
All of the following can cause xanthochromia in CSF except?
: Increased numbers of white blood cells
What is the specific gravity of an isosthenuric urine on consecutive urinalysis?
: 1.010
Which of the following terms indicate the presence of blood in urine?
hematuria
What is the confirmatory test for elevated alpha-fetoprotein?
Amniotic acetylcholinesterase
What is the confirmatory test for elevated alpha-fetoprotein?
Amniotic acetylcholinesterase
What type of proteinuria occurs after several hours of prolonged standing?
orthostatic
What urine analyte is detected by reagent strips using Greiss reaction?
nitrite
What is the best method of preserving urine specimens for analysis?
Refrigeration
Which of the following artifacts is the most commonly found in urine and other body fluids & is characterized as having a dimple center?
Starch granules
On macroscopic examination of the physical characteristics and pH of the seminal fluid specimen of a 32 year old male, the following results were obtained:
Liquefaction: coagulation did not occur
Color: white
Viscosity: watery
Volume: 4.0 ml
pH: 7.2
Which of the above results s/are not normal?
Viscosity and liquefaction
Elevated level of adenosine deaminase in pleural fluid suggests what disease?
tuberculosis
All of the following can result in inaccurate urine pH measurements using reagent strip EXCEPT:
Choices are: double dipping of the reagent strip into the specimen &
Maintaning the specimen at room temperature for 4 hours
A medical technologist performed a STAT microscopic urinalysis and reported the following:
WBC: 10-13/hpf
RBC: 2-6/hpf
Hyaline Cast: 5-7/lpf
Bacteria: 1+
The urine sediment was not discarded and was reexamined microscopically 5 hours after the results were reported. A second technologist reported the same results, except
2+ bacteria and no hyaline cast were found. The most probable explanation for the second technologist’s findings:
Cast dissolved due to increase urine pH
A midstream clean-catch urine is submitted to the laboratory for routine urinalysis and bacterial culture. The routine urinalysis is done first, and 3 hours later, the specimen
is sent to the microbiology department for culture. As the medical technologist on duty, what is your course of action for the said specimen?
Reject it due to time delay and contamination
After a successful lumbar tap, what department is tube labeled 2 routinely sent to?
Microbiology
What cast indicates the mildest renal damage and a few being found after strenuous physical exertion?
hyaline cast
Which of the following is NOT a characteristic of the recommended urine containers?
snap-on lid
What is the single most important measure of semen quality?
Sperm motility
What is the purpose of boiling the urine until the volume is reduced to 10 ml in Hart’s test?
removal of acetone & acetoacetic acid
What urine analyte has the longest time frame of reaction in a reagent strip?
leukocyte esterase